HlolaIndlelaokweAma-Valve Ahlukahlukene Ekuhlolweni Kwe-Valve
Ngenjwayelo,ama-valve ezimboniniezingadingiukuhlolwa kwamandlangesikhathi sokusetshenziswa ngenkathi umzimba we-valve olungisiwe kanye nesembozo nomaokudlayofuthiezilimeleumzimba we-valve kanye nekhava kuyokwenziwa ukuze kuhlolwe amandla.Ingcindezi ebekiweukuhlola,ukuvuselela ingcindeziukuhlolwa nokunye ukuhlolwa kwevalvu yokuphepha kuzohlangabezana neimfunekos kuManuwali Yomsebenzisi kanye nezinqubo ezifanele.TI-valve kufanele yenziwe ukuze kuhlolwe amandla nokuvala ngaphambi kokufaka.Tama-valve anengcindezi ephansi azohlolwa ngokungahleliwe ku-20% kodwa ngo-100%uma engafaneleki;amavalvu omfutho ophakathi nendawo nophezulu azohlolwa ngo-100%.
1,IngcindeziIndlela YokuhlolaokweI-Ball Valve
Ukuhlolwa kwamandla kwei-pneumatic ball valveizoqhutshwa ngoindawo evulekile ingxenyekwebhola.
① Ukubeka uphawutest forntantaingI-valve yebhola:yenza i-valve kuindawo evulekile ingxenye, ngenisa i-test medium kuya kwelinye icala bese uvala elinye icala, uzungezisa ibhola izikhathi eziningana bese uvula indawo evaliwe ukuze ihlolwe lapho i-valve isesimweni esiseduze.At ngesikhathi esifanayo, hlola ukusebenza kokuvala ekupakisheni futhii-gasket, futhingeke kube nokuvuza.Iyethula indlela yokuhlola ukusuka kwenye indawo bese uphinda isivivinyo esingenhla.
②Ukuvalwaukuhlolwa kwe-valve yebhola engaguquki: zungezisa ibhola ngaphansi komthwalo izikhathi ezimbalwa ngaphambi kokuhlolwa, i-valve yebhola engaguquki isesimweni esiseduze ngalesi sikhathi, bese wethula indlela yokuhlola ukuya enanini elishiwo kusukela ekugcineni.Sebenzisa igeji yokucindezela ukuze uhlole ukusebenza kokuvala kokwethula isiphetho, futhi ukunemba kwegeji yokucindezela esetshenzisiwe yizinga elingu-0.5~1 ngeububanziizikhathi ezi-1.5 eziphakeme kunokucindezela kokuhlolwa.Ifanelekile uma kungekho ukukhishwa kwengcindeziphakathi nesikhathi esibekiwe.Yethula i-test medium kusuka komunye umkhawulo bese uphinda ukuhlolwa okungenhla, bese wenza i-valve endaweni evulekile, vala iziphetho zombili, ugcwalise i-medium ibe yi-cavity bese uhlola ukupakisha kanye ne-gasket ngaphansi kwengcindezi yokuhlola, kuyobaakukho ukuvuza.
③Ukuhlolwa kokuvala kuzokwenziwa endaweni ngayinye ye-valve yebhola lezindlela ezintathu.
2,IngcindeziIndlela Yokuhlolaokwe HlolaIvalvu
Hlolaisimo se-valve yokuhlola: ii-valve clack eksisiof phakamisa i-valve yokuhlolauseevundlilelyukuma okuqondile, kanye ne-eksisi yesiteshi kanyei-valve clack eksisiof jika i-valve yokuhlolakukhonacishe ngokuhambisana nomugqa ovundlile.
Ngesikhathi sokuhlolwa kwamandla, ngenisa indawo yokuhlola enanini elishiwo ukusuka ekugcineni kwe-inlet, vala enye indawo futhi uhlole umzimba we-valve nesembozo, iyafaneleka uma kungekho ukuvuza.
Ngobaukuhlolwa kokuvala, ngenisa indawo yokuhlola ukusuka ekugcineni, hlola indawo yokuvala ekugcineni, futhi iyafaneleka uma kungekho ukuvuza ekupakisheni.futhii-gasket.
3,IngcindeziIndlela YokuhlolaokweI-Valve yokunciphisa
①Ukuze kuhlolwe amandla okunciphisa i-valve, ihlanganiswa ngemva kokuhlolwa kwengxenye eyodwa ngokuvamile kodwa ingahlolwa ngemva kokuhlanganisa futhi.Tisikhathi sokuhlolwa kwamandla:lminokweDN<50mm, yinde kune2 imizokweDN65~150mmfuthi yinde kune3 imizokweDN>150mm. Ngemvaukushiselakubhodlafuthi ukuhlanganisa, ukuhlolwa kwamandla ngomoya nangaphansi kwezikhathi ezi-1.5 zokucindezela okuphezulu kakhulu kokunciphisa i-valve kuzokwenziwa.
②Isisetshenziswa sangempela sokusebenza sizosetshenziselwa ukuhlolwa kokuvala uphawu.If umoya noma amanzi asetshenziselwa ukuhlolwa, ukucindezela izikhathi ezingu-1.1 zokucindezela okujwayelekile kusetshenziselwa ukuhlolwa.Winkukhu eqhubaukuhlolwa kwe-steam, ingcindezi ephezulu evunyelwe yokusebenza ngaphansi kwezinga lokushisa lokusebenza izosetshenziswa, futhi umehluko phakathi kwengcindezi yokungena kanye nokucindezela kokuphuma kuyadingeka ungabi ngaphansi0.2MPa. Iindlela yokuhlola yile: ngemva kokulungisa ingcindezi yokungena, lawulaukulungisa isikulufuwe valve kancane kancane ukwenza ingcindezi ephumayo can sensitively futhingokuqhubekayoushintsho phakathi kwebanga eliphakathi kwenani eliphezulu nelincane, elikhululekile ekumisweni nasekubambeni.Valaiblock valvengemuva kwe-valve ye-steamngemva kokulungisaingcindezi yokungena.Iukucindezela kokuphumayo kuzoba inani eliphakeme kakhulu neliphansi futhi inani elikhuphukayo phakathi kwamaminithi angu-2 wengcindezi yokuphuma lizohlangabezana nenaniimfunekokuThebula 4.176-22.Okwamanjeumthamo wepayipi ngemuva kwe-valve uyafaneleka uma ehlangabezana nezidingo ezikuThebula 4.18.Niniukucindezela kwe-outlet kungu-zero ngemva kokulungisa ingcindezi yokungena emanzini nomoya wokunciphisa i-valve, vala i-valve yokunciphisa ukuze wenze ukuhlolwa kokuvala uphawu futhi ifaneleka uma kungekho ukuvuza phakathi kwe-2 min.
4,IngcindeziIndlela YokuhlolaokweI-Butterfly Valve
Amandlatest forI-valve ye-butterfly ye-pneumatickuyafana ne-stop valve.Fnoma ukuhlolwa kokusebenza kokuvalwa kweuvemvane valve, ngenisa indlela yokuhlola kusukela ekugcineni kokugeleza okuphakathi nendawo, vula i-butterfly plate, vala esinye isiphetho bese ufaka ukucindezela enanini elishiwo.Ngemuva kokuqinisekisa ukuthi ukupakisha nezinye izingosi zokuvala azikho ukuvuza, vala ipuleti levemvane, vula enye indawo bese uhlolaukubeka uphawuwe-butterfly plate, iyafaneleka uma kungekho ukuvuza.TI-valve ye-butterfly esetshenziswa njengokulawula ukugeleza ayikwazi ukusetshenziselwa ukuvala ukuhlolwa kokusebenza.
5,IngcindeziIndlela YokuhlolaokweI-Plug Valve
①Lapho wenza ukuhlolwa kwamandla kwe-valve yepulaki, ngenisa i-medium kusuka ekugcineni, vala ezinye iziteshi,isikulufuipulaki endaweni yokusebenza evuleke ngokugcwele ngokulandelana ukuze ihlolwe, futhi umzimba wevalvu uyafaneleka uma kungekho kuvuza okutholakele.
②Lapho kwenziwa ukuhlolwa kokuvala uphawu, iiqonde ngqoipulaki izogcina iingcindeziemgodini olingana nokucindezela esiteshini.Rshintsha ipulaki ukuze uvale indawo, ihlole ukusuka kwenye indawo, bese uzungezisa ipulaki180°bese uphinda ukuhlolwa okungenhla.Ti-valve yepulaki yendlela-ntathu noma emine izogcina ingcindezi endaweni ilingana nokucindezela engxenyeni eyodwa yesiteshi, ijikelezise ipulaki ukuze ivale indawo ngokulandelana kwayo, yethule ukucindezela okuvelaunxandeqeda futhi uhlole esinye isiphetho ngesikhathi esifanayo.
Ngaphambi kokuhlolwa, kuvunyelwe ukusebenzisa ungqimba olulodwa lwe-non-acidukugcoba okuncaneuwoyela endaweni yokuvala i-valve yepulaki, futhi iyafaneleka uma kungekho ukuvuza nokunwetshwaithonsizitholwe ngesikhathi esibekiwe.Isikhathi sokuhlola se-valve yepulaki singase sibe sifushane futhi singase sibe ngu-1~3min ngokujwayelekile ngokuya ngobubanzi obujwayelekile.TI-valve yokuxhuma igesi yamalahle izokwenziwa ukuhlolwa kokuvalwa komoya ngokucindezela kokusebenza okungu-1.25.
6,I-Pressure Test Method yeI-valve ye-diaphragm
Ukuze uthole ukuhlolwa kwamandla kwevalvu ye-diaphragm, ngenisa i-medium kusuka kunoma yikuphi ukuphela, vula i-valveqhwafuthi uvale esinye isiphetho, hlola umzimba we-valve kanye nekhava ngemva kokucindezela kokuhlolwa kwenyuka kuye kwinani elishiwo, futhi ifaneleka uma kungekho ukuvuza.Dnciphisa ukucindezela kokuhlolwa kokuvala, vala i-valve clack bese uvula enye indawo ukuze uyihlole, futhi ifaneleka uma kungekho ukuvuza.
7,I-Pressure Test Method yeMisa Valve kanyeI-Valve Ecindezelayo
Okokuhlolwa kwamandla kwei-valve yokumisa kanye ne-throttling valve, ngokuvamile ubeke i-valve ehlanganisiwe ohlakeni lokuhlola ingcindezi, i-valve clack evulekile, faka i-valve ephakathi nenani elishiwo, futhi uhlole ukuthi umzimba we-valve nekhava kukhona yini.ukuthungathanokuvuza.Ingxenye eyodwa ingenziwaamandlahlola futhi.Tukuhlolwa kokuvala uphawu kungokwe-valve yokumisa lapha.Niniukuhlolwa, induku yevalvu yevalvu yokumisa isesimweni esime mpo, i-valve clack evulekile, yethula okuphakathi nendawo ukusuka kwelinye icala ngaphansi kwe-valve ukuya enanini elishiwo futhi uhlole ukupakisha kanye ne-gasket.Clahlekelwa i-valve clack ngemva kokuba isifanelekile bese uvula enye indawo ukuze uhlole ukuthi iputshukile yini.If kokubiliamandlaukuhlolwa nokuvala ukuhlolwa kwe-valve okufanele ihlolwe, ukuhlolwa kwamandla kungase kwenziwe kuqala, bese wehlisa ingcindezi enanini elishiwo ngokuhlolwa kokuvala, hlola ukupakishwa kanye ne-gasket, vala i-valve clack, futhi uvule isiphetho sokuphuma ukuze uhlole ukuthi ukuvalaphezuluiputshukile.
8,I-Pressure Test Method yeIvalve yesango
Ukuhlolwa kwamandla kweIsangoi-valve iyafana ne-valve yokumisa.TNazi izindlela ezimbili zokuvala ukuhlolwa kweIsangoi-valve.
①Vula i-ipuleti lesangoukwenza ingcindezi ku-valve ikhuphukele ku-valve ecacisiwe, valaipuleti lesangofuthi ngokushesha ukhiphe ivalvu yesango, uhlole ukuthi izingxenye zokuvala ezinhlangothini zombili zepuleti lesango zivuzile yini, noma faka ngokuqondile indawo yokuhlola endaweni yepulaki kukhava yevalvu enanini elishiwo, futhi uhlole ukuvaleka ezinhlangothini zombili zepuleti lesango.Twayeshilo ngenhla ibizwa ngokuthiukuhlolwa kwengcindezi ephakathifuthi ayifaneleki ukuhlolwa kokuvala i-valve yesango enobubanzi obuncane obungaphansi kunoDN32mm.
②Enye indlela iwukuba: uvule ipuleti lesango ukuze wenze umfutho wokuhlola we-valve ukhuphuke ube inani elishiwo, bese uvala ipuleti lesango, uvule ipuleti eliyimpumputhe kwelinye icala ukuze uhlole ukuthi indawo yokuvala ivuzile yini, futhihlehlaukulandelana kokuphinda ukuhlolwa okungenhla kuze kube yilapho ifaneleka.
Ukuhlolwa kokuvalwa kokupakisha kanye ne-gasket yei-valve yesango le-pneumatickufanele kwenziwe ngaphambi kokuhlolwa kokuvalwa kwepuleti lesango.
9,Indlela Yokuhlola Ingcindezi Yevalvu Yokuphepha
①Ukuhlolwa kwamandla kwevalvu yokuphepha kuyafana namanye amavalvu futhi amanzi athathwa ayohlolwa.Lapho uhlola ingxenye engezansi yomzimba we-valve, faka ingcindezi evela ku-inletI=Iqeda, bese uvala indawo yokuvala.Wisikhukhukazi sihlola ingxenye engaphezulu yomzimba we-valve kanye nesembozo se-valve, sethula ingcindezi evela endaweni yokuphumaElqeda, bese uvala ezinye iziphetho.It iyafaneleka uma umzimba we-valve nekhava kungavuzi phakathi nesikhathi esishiwo.
②Indlela evamile esetshenziselwaukubeka uphawutest kanyeukuhlolwa kwengcindezi njalongu:umusi ogcweleisetshenziswa njengendlela yokuhlola i-valve yokuphepha yesitimu;umoya usetshenziswa njengendlela yokuhlola yevalvu esetshenziswa kuyoammonianoma enye igesi;amanzi asetshenziswa njengendlela yokuhlola yevalvu esetshenziswa emanzini nokunyeengagqwaliuketshezi.Nge-valve yokuphepha ezindaweni ezithile ezibalulekile,initrogenisetshenziswa njengendlela yokuhlola njengokujwayelekile.
Ingcindezi encane ithathwa njengengcindezi yokuhlola ekuhlolweni kokuvala okungenani izikhathi ezimbili, futhi ifaneleka uma kungekho ukuvuza phakathi nesikhathi esishiwo.TNazi izindlela ezimbili zokuhlola ukuvuza: eyokuqala iwukuvala izingxenye zokuxhuma zevalvu yokuphepha, unamathisele iphepha elincanyana ku-outlet E1 flange ngokusebenzisaamafutha, futhi liyavuza uma lincane iphephaiqhubud nomaabafanelekileuma iphepha elincanyana alizangeiqhubu. Iindlela yesibili ukunamathisela ipuleti lepulasitiki elincanyana noma amanye amapuleti engxenyeni engezansi ye-outlet flange ngokusebenzisaamafutha, faka amanzi ukuze uvale i-valve clack futhi uyihlole, futhi iyafaneleka uma chaukubhavumulaemanzini.Isetha ingcindezitest kanyeukuvuselela ingcindeziukuhlolwa kwe-valve yokuphepha kuzokwenziwa okungenani izikhathi ezi-3, futhi kuyafanelekauma ehlangabezana nezidingo.Pcela ubone i-GB/T 12242-1989Izindlela Zokuhlola Ukusebenza Kwamavalvu Okuphepha ukuhlolwa kokusebenza kwe-valve yokuphepha.
Isikhathi sokuthumela: Dec-06-2021